diff --git a/lib/Dav/SubscriptionManagementPlugin.php b/lib/Dav/SubscriptionManagementPlugin.php
index 9e990c7..14f3e8c 100644
--- a/lib/Dav/SubscriptionManagementPlugin.php
+++ b/lib/Dav/SubscriptionManagementPlugin.php
@@ -169,6 +169,7 @@ class SubscriptionManagementPlugin extends ServerPlugin {
 						[
 							'success' => $updateSuccess,
 							'errors' => $updateErrors,
+							'response' => $responseContent,
 						] =	$transport->updateSubscription($subscription->getId(), $subscriptionOptions);
 
 						if(!$updateSuccess) {
diff --git a/lib/PushTransports/WebPushTransport.php b/lib/PushTransports/WebPushTransport.php
index ebd638a..3d6b633 100644
--- a/lib/PushTransports/WebPushTransport.php
+++ b/lib/PushTransports/WebPushTransport.php
@@ -111,6 +111,7 @@ class WebPushTransport extends Transport {
 		// there are no options which can be edited -> NOOP
 		return [
 			'success' => True,
+			'response' => "",
 		];
 	}
 }